Servotek Encoder 2011 Catalog

8/3/2019 Servotek Encoder 2011 Catalog

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RC-800www.servotek.com

Optical Encoders

SERVO-TEK PRODUCTS COMPANY, INC.


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Summary

ST32 Series Light Duty Rotary Incremental Encoder

Resolutions to 100 lines/rev, single or dual channel 10,000 RPM, shaft load 4 lbs radial and 10 lbs axial

1.25 OD x 0.9 inches minimum height, 1/8 to 3/16 inch stainless steel shaft

Face or servo groove mounting

Protection to IP50, dust-protected

Hollo

wShaftEncoders

ST20 Series Heavy Duty Sealed Rotary Incremental Encoder Resolutions to 2048 lines/rev, dual channel with index

6000 RPM, shaft load 20 lbs radial and 20 lbs axial


Flange, face or servo groove mounting

Protection to IP64, dust-tight, water splashes

ST25 Series Industrial Rotary Incremental Encoder Resolutions to 5000 lines/rev, dual channel with index

6000 RPM, shaft load 30 lbs radial and 30 lbs axial


Flange, face, servo or PY mounting available

Protection to IP66, dust-tight, water jets

ST50 Series High Performance Rotary Incremental Encoder Resolutions to 5000 lines/rev, dual channel with index, brushless commutation

500 kHz bandwidth, -40C to 125C operating temperature, RS422 output

2.0 OD x 0.9 inches high, bores to 5/8 maximum

Mounting #4-40 on 1.812 bolt circle in 2 places standard, others available

Duplex bearings, exible coupling, 360 commutation alignment

ST38 Series High Performance Rotary Incremental Encoder Resolutions to 2048 lines/rev, dual channel with index

200 kHz bandwidth, -10C to 100C operating temperature, RS422 output


Mounting #2-56 on 1.280 bolt circle in 2 places standard, others available

Duplex bearings and exible coupling

PM Series Light Duty Rotary Incremental Encoder Resolutions to 120 lines/rev (single channel) or 60 lines/rev (dual channel)

10,000 RPM, shaft load 1 lb radial and 1 lb axial

1.25 OD x 0.9 inches minimum height, #10-32 threaded shaft mounting

Face or servo groove mounting options

Protection to IP40, enclosed

PT Series Modular Rotary Incremental Encoder Resolutions to 1024 lines/rev, dual channel with index

100 kHz bandwidth, 0C to 70C operating temperature


Mounting #4-40 on 1.812 inch BC or #6-32 on 1.500 inch BC

Locktite mounting, optional push-on hub attachment

ShaftEncoders


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Electrical Specications

Resolution Up to 1024 lines/revBandwidth 100 kHz maximum

Power Options 5, 12, 15 and 24 VDC

Internal Pullup Resistor 10 kilohms

Mechanical SpecicationsDiameter x Height 2.0 OD x 0.9 inches

Shielded Cable 3-conductor 24 AWGWeight 2.0 ounces

Housing Delrin (Black)

Shaft Type Hollow Shaft

Shaft Speed 20,000 RPM maximum

Shaft Bore 0.188 or 0.251 standard

Mounting Center 1 #4-40 on 1.812 inch BC

Mounting Center 2 #6-32 on 1.500 inch BC

Environmental SpecicationsOperating Temperature 0C to+70C

Electrical Specications

Resolution Up to 120 lines/revBandwidth 20 kHz maximum

Power Options 5, 12, 15 and 24 VDC

Internal Pullup Resistor 10 kilohms


Standard Cable 3-conductor 22 AWGWeight 2.0 ounces

Housing Delrin (Black)

Shaft Type Threaded or Round


Shaft Size #10-32 or 0.187 inch

Mounting Conguration 1 Screw Mount

Mounting Conguration 2 Face Mount

Environmental SpecicationsOperating Temperature 0C to+70C

PM Series Encoders1-120 cycles per revolution

PT Series Encoders1-1024 cycles per revolution

The small size of the PM series encoder makes it

easy to use where space is limited. The screw mount

design has a #10-32 threaded shaft that is easy to

mount. Special mounting brackets and couplings are

not required. The face mount design has three tapped

mounting holes and a synchro groove. Resolutions

to 120 lines/rev (single channel) or 60 lines/rev (dual

channel) are possible. Consult sales department for

any special requirements you may have.

The PT series encoders are a cost effective solution

to velocity and positional feedback. When mounted

to any rotating shaft, the PT series encoder provides a

single or dual channel square wave output for speed

and position control. The small size of the PT series

encoder makes it easy to use where space is limited.

The hollow shaft design is easy to mount with no cou-

pling or tedious alignment procedures. Consult sales

department for your special requirements.

PM Series PT Series

Reference data sheet #D400 for more information.Reference data sheet #D425 for more information.

PT Series Modular EncoderPM Series Light Duty Encoder


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Electrical SpecicationsResolution 30, 60 or 100 lines/rev

Bandwidth 20 kHz maximum

Standard Power Option 5 VDC

Alternate Power Option 7 to 24 VDC


Starting Torque 0.1 oz-inch

Weight 2.0 ouncesShaft Runout 0.001 T.I.R. maximum

Shaft Material 416 Stainless Steel


Environmental SpecicationsOperating Temperature -40C to+85C

Storage Temperature -40C to +85C

Relative Humidity 90% non-condensing

Mechanical Shock 50G for 11mS

Vibration 5 to 2000 Hz @ 20G

Tachometer SpecicationsOutput Voltage 1 to 50 VDC/1000 RPM

Shaft Diameters .120 .187 .250 Others

Mounting Congurations Face, Flange or Servo

Body Diameter 1.134 inches

Encoder SpecicationsResolution Up to 1024 lines/rev

Channels Single or Dual

Voltage 5 VDC, 12 VDC, others

Body Diameter 2.00 inches

ST32 Series Encoders30-100 cycles per revolution

ST32 Series Light Duty Encoder

Single or dual channel

Optional RS422 line driver available

Shaft load 4 lbs radial and 10 lbs axial 10k internal pullup is standard

1/8 or 3/16 inch stainless steel shaft

Face, ange or servo groove available

Protection to IP50, dust-protected

PTS Series Tach-Encoders1-1024 cycles per revolution

30-12PTSA-7103A-2 shown here ST32 with servo groove

PTS Series DC Tachometer Encoder

The PTS series tach-encoder combination pro-

vides both velocity and position signals from one

device. By having the tachometer and encoderon one common shaft, mounting and coupling

requirements are reduced. The DC tachom-

eter generator can provide an analog signal from

12,000 RPM down to zero speed. Since the DC

tachometer generator reverses polarity from CW

to CCW rotation, direction can be sensed almost

instantaneously. Different mounting arrange-

ments are available for your tach-encoder such

as face mount, square end bell, round end bell

and even an adaptor that will t PY mounting kits.

Servo-Tek manufactures sealed DC tachometer

generators which could be incorporated into your

tach-encoder as well as low ripple units. See

tables below for specications.

Reference data sheet #505 for more information.


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Electrical SpecicationsResolution 200 to 5000 lines/rev

Bandwidth From 50 kHz to 500 kHz


Alternate Power Option Consult Factory


Starting Torque 0.9 oz-in, 10 oz-in (seal)

Weight 18 to 28 ouncesShaft Runout 0.001 T.I.R. maximum









Bandwidth 50 kHz, 125 kHz optional


Alternate Power Option 4 to 18 VDC


Starting Torque 0.1 oz-inch

Weight 6.5 ouncesShaft Runout 0.001 T.I.R. maximum










ST25 Series Industrial EncoderST20 Series Heavy Duty Sealed Encoder

ST20 with face mount ST25 with square ange

Single or dual channel with index

RS422 differential line driver optional

Shaft load 20 lbs radial and 20 lbs axial Special shaft seal is standard


Face, ange, servo, or PY mounting adaptor

Protection to IP64, dust-tight, water splashes


RS422 differential line driver standard

Shaft load 30 lbs radial and 30 lbs axial Special shaft seal is standard


Face, ange, servo, or PY mounting adaptor

Protection to IP66, dust-tight, water jets

Reference data sheet #503 for more information. Reference data sheet #506 for more information.


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Incremental Accuracy 0.5 arc minutes

Commutation Accuracy 30 arc minutes


Shaft Bore Up to 5/8 inches

Minimum Shaft Length 0.35 inches standardMaximum Shaft Length Thru shaft is standard

Axial Shaft Movement 0.030 total



Storage Temperature -55C to +150CRelative Humidity 90% non-condensing





Incremental Accuracy 0.5 arc minutes

Commutation Accuracy N/A


Shaft Bore Up to 3/8 inches

Minimum Shaft Length 0.25 inches standardMaximum Shaft Length Thru shaft is standard

Axial Shaft Movement 0.030 total



Storage Temperature -25C to +100CRelative Humidity 90% non-condensing





ST50 Series High Performance EncoderST38 Series High Performance Encoder

ST38 hollow shaft encoder ST50 hollow shaft encoder



Low cost and low prole Easy to install

-10C to 100C operating temperature

Several mounting congurations available


Dual channel with index and gating option


Brushless motor commutation 360 commutation alignment

-40C to 125C operating temperature

Several mounting congurations available


Reference data sheet #501 for more information. Reference data sheet #502 for more information.


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Cables & Flying Leads

for ST38 and ST50 Series Encoders

PinsShieldedCable at

80C

ShieldedCable at

105C

FlyingLeads at

200C

8 20076-L 20184-L 20073-L

14 20180-L 20183-L 20182-L

16 20181-L 20084-L 20074-L

Other Products

Request a Servo-Tek RC-700 catalog for more information on our DC tachometer generators.

Accessories

CS-7514F-51CThis low ripple DC tach-

generator has a 1/4stainless steel shaft,

22 AWG shielded cable

and an output of 3 volts

per thousand RPM. The

ripple will not exceed

1.5% RMS on this unit.

SA-740A-2This small, face mounted

DC tach-generator hasa 1/8 stainless steel

shaft and an output of

7 volts per thousand

RPM. It is ideally suited

to many instrumentation

applications.

Tachsyn TransducerThe patented Tachsyn

brushless tachometer/

commutator is a unique

transducer that can be

used as a brushless DC

tachometer and/or as

a brushless DC motorcommutator.

ST-7565A-2This bearingless tach-

generator is small in size

and has a black delrin

housing and end plate.

Mounts easily using a

#10-32 threaded shaft.

Mounting brackets willnot be required.

Encoder AccessoriesSeveral different mounting accessories are

available for the Servo-Tek encoder line.

We offer a coupling accessory for our shaft

encoders that will allow attachment to virtually

any shaft. An adaptor is also available thatwill allow attachment to PY mounting kits.

Encoder Cables and Flying LeadsFor Servo-Teks ST38 and ST50 series hollow

shaft encoders, we have shielded cables and

ying leads available with mating connectors

in 8, 14 or 16 pin congurations. See table

below for details (L is length in inches).

Standard shielded cable length is 24 inches

for both ST38 and ST50 encoders.


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ST38

ST50

ST25

ST32

PM Series

Several models may be congured, by consulting the factory,

for specic options not listed here. Almost any line count and

shaft bore are possible within the encoders limits. Virtuallyany electronic circuit or mounting pattern can be made avail-

able. Contact sales department for any special requests.

Copyright 2004 Servo-Tek Products Company

Documents

Servotek Encoder 2011 Catalog